EP2017107B1 - Shade roller with roller lock - Google Patents

Description

The invention relates to a shading roller blind for a motor vehicle window with a flexible sheet which can be wound up and unwound on a winding shaft and which can be moved from a stowed position into an at least partially unwound protective position by means of at least one linear guide means.

Shading blinds may be provided on rear windows, side windows and / or panorama windows of vehicles. The flexible fabric, also referred to as roller blind, is designed according to the requirements of a suitable material. For unwinding of the flexible sheet of the winding shaft, it is known, for example, to connect at a free end of the flexible sheet a drawer or a pull-out profile with the flexible sheet, which preferably extends over the entire width of the sheet. The pull-out strip or the pull-out profile is provided by suitable means, for example scissor or swivel arms, kink-resistant antennas, guided in guide rails racks or central telescopic arms movable. A drive of this linear guide means, for example, electrically, pneumatically and / or hydraulically.

It is further from the example DE 201 129 48 U1 known to provide a manually releasable blocking device by which a linear guide means in a stowed position or protective position can be locked, wherein after releasing the blocking device, a mechanical drive means is effective, so that the flexible sheet is unwound from the winding shaft. The blocking device can be released by means of a button release, with a switch which is necessary for this purpose being integrated, for example, in a door trim. The trained as an antenna linear guide means is arranged due to a required space, for example, in the wet area of the vehicle door. The linear guide means and the switch are coupled to each other via a Bowden cable or the like.

It is an object of the invention to provide a shading roller blind, which allows simple means a comfortable and reliable operation.

This object is achieved by a shading roller blind for a motor vehicle windshield with a flexible sheet that can be wound on a winding shaft and is movable from a stowage position into an at least partially unwound protective position by means of at least one linear guide means, and with a releasable blocking device, by means of which the Linear guide means at least in one position, in particular the protective position and / or the stowed position can be locked, wherein the blocking device comprises a push-push-lock.

As push-push-locking is an actuating mechanism which works according to a so-called ballpoint pen principle called. A locking and releasing the blocking device is realized by applying a force always in the same direction of actuation and / or a movement corresponding to the force. The force is at first a compressive force. The push-push locking, for example, a withdrawal or unwinding of the blind is prevented. In another embodiment, the blocking device locks a winding of the roller blind.

In one embodiment of the invention, the linear guide means in the stowed position can be locked, wherein the blocking device by applying a force, in particular a compressive force, on the linear guide means and / or moving the linear guide means against a Abwickelrichtung is solvable. In other words, to release the blocking device and to unwind the roller blind, preferably a compressive force is applied against a tensile force necessary for unwinding. For locking, the restoring force necessary for winding can be used. The release or locking force is preferably applied in a simple manner by pressing the linear guide means and / or parts thereof against the unwinding direction. However, it is also conceivable to provide force deflection means, so that a tensile force is applied by a user, which, however, acts as a pressure force for the push-push locking. By a push-push lock can be on switching elements or the like, which are to be integrated, for example, on an interior trim of a side door. A mechanical effort for the design of a push-push lock is low, so that a cost-shading shade is created. In one embodiment, the blocking device is at least partially disposed on a housing or the like of the winding shaft, wherein the shade according to the invention can be designed as a compact unit, which in a pre-assembly assembled and tested. The tested unit can be installed as a component in a motor vehicle. To unwind the roller blind any linear guide means can be used, for example, lateral guide rails, pivot arms and / or centrally arranged actuating rods are conceivable.

In one embodiment of the shading blinds, an effective in the unwinding mechanical drive means is provided, by the flexible sheet of the winding shaft can be unwound after a release of the blocking device. Since the drive means only in one direction, namely the unwinding, is effective, a corresponding arrangement is also referred to as semi-automatic. A winding of the flexible sheet is done manually in an embodiment, wherein preferably a return spring or the like is provided on the winding shaft, which is ensured by the fact that the flexible sheet is rolled up compactly on the winding shaft.

In a further embodiment of the shading blinds, the mechanical drive means is designed as a spring-loaded arrangement. Depending on the orientation, the spring-loaded arrangement comprises a compression spring, for example a helical compression spring, or a tension spring. A winding of the flexible sheet takes place against an action of the spring, wherein the unwinding of the flexible sheet so stored force acts on the linear guide means.

In a further embodiment of the shade blind, the blocking device comprises at least one latching element which cooperates with the linear guide means for a locking. Depending on the design of the linear guide means, a counter-locking element can be arranged on the pull-out profile or on other elements. In other embodiments, a latching element is provided on the linear guide means.

In a further development of the shading blinds, the linear guide means comprises a guide with a guide groove, in which the latching element is guided, wherein the guide groove has at least one latching point. The locking point is designed to be complementary to the locking element, so that this is latched there. In one embodiment, the latching element is mounted so as to be displaceable on the blocking device transversely to the unwinding direction, in particular at a right angle thereto. This results in particularly advantageous possibilities for the design of the guide.

In a further development of the shading blinds, the guide groove has the shape of a heart curve, at least in sections. Such a shape has proven to be particularly advantageous for the realization of a push-push lock.

In another embodiment of the shade blinds, alternatively or additionally, a blocking device is provided with a push-push lock, the actuating direction of which extends transversely to the unwinding direction, in particular at an angle of approximately 90 ° thereto. In this case, an operation switch or button may be provided, wherein by pressing the button, a lock and / or unlocking is possible. The shade is preferably equipped with a semi-automatic. In one embodiment of the invention, a return spring is provided, wherein the roller blind can be manually extended against the force of the return spring and in any extended position, in particular in a protective position, can be locked. By loosening the blocking device, the roller blind is pulled in automatically by the force of the return spring. In another embodiment, an effective in unwinding drive means, for example a spring-loaded arrangement is provided, wherein after releasing the blocking device, the roller blind is unwound by the drive means becomes. It is obvious that instead of an actuating knob or other element which can be actuated by pressure force, a element which can be actuated by pulling force, such as a loop or the like, can be provided, whereby locking and releasing occur by applying a force in an actuating direction.

In one embodiment of the invention, the linear guide means has at least one pivotable switch and the blocking device at least one movable switching element for actuating the switch, wherein the switch and the switching element cooperate for locking the linear guide means. By the switching element, the switch is pivoted to lock or release. The switching element has an attack surface for a user in one embodiment, wherein by applying a force on the engagement surface, the switching element is pivotable and thus the linear guide means can be locked.

In a further embodiment of the shade blind, the blocking device comprises a drive. By the drive, the switching element for locking and / or for releasing the lock is movable in one embodiment. Since only a small travel is required, the drive can be made much more compact, as a necessary for winding and / or unwinding of the roller blind over the entire length drive. In one refinement, the drive can be operated remotely, so that, for example, a shading or protective roller blind provided in the rear area can easily be opened and / or unwound by a driver.

In a further embodiment of the shading roller blind, the linear guide means comprises at least one rod, which is operatively connected to an extension profile attached to the flexible sheet material for a movement transmission. The pull-out profile is preferably attached to a free edge of the flexible sheet, with a Attachment can be fixed or floating. The pull-out profile can extend over the entire width of the flexible sheet. The pull-out profile can be created as a rod or the like, for example made of metal or plastic. In other embodiments, the pull-out profile is realized in one piece with the flexible fabric as reinforcement.

In another embodiment of the shade blind, the linear guide means comprises at least one telescopic rod, which is operatively connected to the attached to the flexible sheet extract profile for the transmission of movement. The telescopic rod is transferred in one embodiment by the spring-loaded assembly in an extended or a collapsed position, the telescopic rod in the collapsed position requires little space.

Further advantages of the invention will become apparent from the following description of embodiments of the invention, which are shown schematically in the drawings. For identical or similar components, the same reference numbers are used in the drawings. All of the claims, description or drawings resulting features and / or advantages, including process steps, structural details and spatial arrangements may be essential to the invention both in itself and in various combinations. Features described or illustrated as part of one embodiment may also be used in another embodiment to obtain a further embodiment of the invention.

Fig. 1:

eine teilweise freigeschnittene, perspektivische Darstellung ei- nes Fondbereichs eines Kraftfahrzeugs mit Blick auf die Innen- seite der hinteren, rechten Tür;

Fig. 2:

die hintere, rechte Tür gemäß Fig. 1 mit einem erfindungsge- mäßen Seitenfensterrollo gemäß einem ersten Ausführungsbei- spiel in einer teilweise freigeschnittenen Darstellung;

Fig. 3a:

eine Führungsnut für eine erfindungsgemäße Blockiereinrich- tung mit einem Rastelement in einer ersten Funktionsstellung;

Fig. 3b:

die Führungsnut gemäß Fig. 3a mit dem Rastelement in einer zweiten Funktionsstellung;

Fig. 4:

die hintere, rechte Tür gemäß Fig. 1 mit einem erfindungsge- mäßen Beschattungsrollo gemäß einem zweiten Ausführungs- beispiel in einer teilweise freigeschnittenen Darstellung;

Fig. 5:

ein Seitenfensterrollo mit einer Blockiereinrichtung gemäß ei- nem dritten Ausführungsbeispiel der Erfindung;

Fig. 6:

einen ersten Betriebszustand bei einer Betätigung der Blockier- einrichtung gemäß Fig. 5;

Fig. 7:

einen zweiten Betriebszustand bei einer Betätigung der Blo- ckiereinrichtung gemäß Fig. 5;

Fig. 8:

eine Blockiereinrichtung gemäß einem vierten Ausführungsbei- spiel der Erfindung während des Ausfahrens eines Rollos;

Fig. 9:

die Blockiereinrichtung gemäß Fig. 8 bei Erreichen eines Schaltpunktes;

Fig. 10:

die Blockiereinrichtung gemäß Fig. 8 in einem verrasteten Zu- stand;

Fig. 11:

die Blockiereinrichtung gemäß Fig. 8 beim Lösen der Verras- tung und

Fig. 12:

die Blockiereinrichtung gemäß Fig. 8 beim Einfahren der Rollo- bahn.

In the drawings show:

Fig. 1:

a partially cutaway, perspective view of a rear area of a motor vehicle with a view of the inside of the rear right door;

Fig. 2:

the rear right door according to Fig. 1 with a side window roller blind according to the invention according to a first embodiment in a partially cut-away view;

Fig. 3a:

a guide groove for a blocking device according to the invention with a latching element in a first functional position;

3b:

the guide groove according Fig. 3a with the locking element in a second functional position;

4:

the rear right door according to Fig. 1 with a shade according to the invention according to a second embodiment in a partially cut-away representation;

Fig. 5:

a side window roller blind with a blocking device according to a third embodiment of the invention;

Fig. 6:

a first operating state upon actuation of the blocking device according to Fig. 5 ;

Fig. 7:

a second operating state upon actuation of the blocking device according to Fig. 5 ;

Fig. 8:

a blocking device according to a fourth embodiment of the invention during the extension of a roller blind;

Fig. 9:

the blocking device according to Fig. 8 upon reaching a switching point;

Fig. 10:

the blocking device according to Fig. 8 in a latched condition;

Fig. 11:

the blocking device according to Fig. 8 when loosening the catch and

Fig. 12:

the blocking device according to Fig. 8 when retracting the roller coaster.

FIG. 1 schematically shows a rear portion of a motor vehicle 1 in a partially cutaway, perspective view overlooking the inside of a rear, right side door 2. The motor vehicle 1 has a vehicle roof 10, from the side a B-pillar 11 of the motor vehicle 1 to a not shown Floor group leads. As is known, a corresponding B-pillar on the FIG. 1 not shown left side of the motor vehicle 1 is provided. The illustrated motor vehicle 1 further comprises a C-pillar 12. The roof 10 is at a trailing edge in a frame of a rear window opening 13, in which a rear window, not shown, can be used. Between the B-pillar 11 and the C-pillar 12, the right, rear side door 2 is mounted in a known manner, in particular by means not shown hinges. At the height of the side door 2 is a rear seat 3.

In the Fig. 1 visible, an interior of the motor vehicle 1 facing inside of the side door 2 has an inner lining 20. On the inner panel 20, a door handle 21 and an actuating pawl 22 are provided for a door lock, not shown. Other elements, not shown, such as speakers and the like, may also be integrated into the side door 2 and / or attached thereto.

The side door 2 has a window opening 23, which is divided into a first section 24 and a second section 25 by a web 26. The second section 25 is designed as an opening for a so-called triangular window, so that the window opening 23 is substantially trapezoidal. The window opening 23 has a lower edge 27 and an upper edge 28, wherein the upper edge 28 is usually not parallel to the lower edge 27, but may extend curved. In the window opening 23, a non-illustrated, two-part side window can be used. The side window is usually displaceable at least in the first section 24.

The window opening 23 can be further darkened by an inventive shade blind, which is designed in the embodiment as a side window blind 4 with a blind sheet 40. In other embodiments, a shading blind according to the invention serves to cover the rear window opening 13. For unwinding the blind sheet 40 from an inward opening Fig. 1 winding shaft, not shown, comprises the illustrated side window roller blind 4 linear guide means 5 with a pullout profile 50 and a rod 51. The pullout 50 is attached to a free edge of the blind sheet 40 and movable by means of the rod 51. Alternatively and / or additionally, the pull-out profile 50 is guided in lateral guide rails.

Fig. 2 schematically shows the side door 2 according to Fig. 1 , Uniform reference symbols are used for the same components and a detailed description of these components will be omitted. In the illustration according to Fig. 2 the inner lining 20 of the side door 2 is partially cut free. As a result, non-visible parts of the side window blind 4 are visible in normal use. The side window roller blind 4 comprises a winding shaft 43, on which the roller blind 40 is fastened up and unwound. In the illustration according to Fig. 2 the blind sheet 40 is only partially processed. As in FIG. 2 recognizable, the roller blind 40 is at Winding on the winding shaft 43 via a slot 29 behind the inner panel 20 of the side door 2 retractable. The roller blind 40 is retractable in an advantageous embodiment completely behind the inner lining 20, but the pull-out profile 50 protrudes at least partially visible. The illustrated pull-out profile 50 is curved at least in sections, so that the pull-out profile 50 can be adapted to the course of the upper edge 28 of the window opening 23 to be covered. As a result, a good darkening of the associated side window in the edge area is possible.

The pull-out profile 50 is operatively connected to the rod 51 for moving the pull-out profile 50 and thus for unwinding the roller blind 40 from the winding shaft 43. The rod 51 is at least partially retractable in a hollow tube 52. The rod 51 and / or the hollow tube 52 needs / require some small space on the side door 2 and can / can be so easily integrated into this. When lowering the rod 51, a spring, such as a helical compression spring 6 is compressed. The helical compression spring 6 acts as a mechanical drive means, wherein an unwinding of the roller blind 40 can take place due to the spring force of the helical compression spring 6 and / or is supported thereby. In other embodiments, the pull-out profile is guided in one or two lateral guide rail (s), wherein a spring for unwinding the roller blind can be provided in the guide rail. For winding the roller blind 40 on the winding shaft 43, a return spring, not shown, is preferably provided. In order to keep the roller blind 40 in a specific position, a blocking device 7 is provided according to the invention. The blocking device 7 according to the invention comprises a push-push lock, so that the rod 51 and / or the pull-out profile 50 can be locked at least in a stowed position of the roller blind 40, the lock being releasable by pressing and / or moving counter to the unwinding direction , In the illustrated embodiment, the blocking device 7 acts with the rod 51 together. For this purpose, in the illustrated embodiment, the blocking device 7 comprises an in Fig. 2 not shown locking element, which cooperates with the linear guide means 5 in a stowed position of the blind sheet 40 for locking.

Fig. 3a and 3b schematically show a guide groove 54 of a push-push latch. The guide groove 54 or backdrop is at least partially designed as a heart curve. In the guide groove 54 is a on the blocking device 7 according to Fig. 2 arranged latching element 70 out. The locking element 70 is, as shown by the arrows, mounted displaceably in the blocking device 7 in a direction transverse to the unwinding direction A. The guide groove 54 is for example on the pullout profile 50 or the rod 51 according to Fig. 2 educated. To lock the pull-out profile 50 and / or the rod 51 and thus the guide groove 54 is moved by applying a compressive force P against the unwinding A, in the representation down. In this case, the locking element 70 is deflected by the slope of a formed in the guide groove 54 counter-latching element 55, in the illustrated embodiment to the left. Once a reversal point 56 is reached, the force for moving the rod 51 and / or the Auszugprofils 50 can be reduced, the rod 51 and thus the guide groove 54, for example, due to the force of the helical compression spring 6 Fig. 2 in the unwinding A, in the representation upwards, is moved. As a result, the latching element 70 comes into engagement with the counter-latching element 55 at a latching point 57. The latching element 70 interacts with the counter-latching element 55 in such a way that the movement of the pull-out profile 50 and / or the rod 51 in the unwinding direction A is prevented. By moving the rod 51 and / or the pull-out profile 50 counter to the unwinding direction A again, the guide groove is moved downwards in the illustration and the latching element 70 is laterally deflected due to the shape of the guide groove 54. The deflection takes place in the illustrated Embodiment to the right. As a result, an interaction of the latching element 70 with the counter-latching element 55 and thus the blocking device 7 according to Fig. 2 solved. After reaching a reversal point 58, an actuating force can be removed, whereby the roller blind 40 is extended due to the force of the helical compression spring 6, that is moved in the unwinding A.

Fig. 4 schematically shows the side door 2 according to Fig. 1 with a side window blind 4 according to a second embodiment of the invention. An actuating device 105 for the side window roller blind 4 comprises a telescopic rod 151 which acts on the pull-out profile 50, so that the pull-out profile 50 in the illustrated embodiment is movable in the direction of the upper edge 28 of the window opening 23 for unwinding the roller blind 40. The illustrated telescopic rod 151 is represented by a in Fig. 4 not visible helical compression spring or the like extended. As in Fig. 4 recognizable, a blocking device 7 according to the invention is also provided. The blocking device 7 is designed such that the side window blind 4 is gradually unwound. If the roller blind 40 is completely wound on the winding shaft 43, only a first segment of the telescopic rod 151 is extended in a first pressing and / or moving the pull-out profile 50 and / or the telescopic rod 151 counter to an unwinding direction. By renewed pressing with little force and / or moving the pull-out profile 50 against the unwinding another segment of the telescopic rod 151 is extended. In other embodiments, however, it is also conceivable that the telescopic rod 151 is fully or continuously extended even when first actuated or independent of the segments gradation takes place.

Fig. 5 schematically shows a side window blind 204 according to a third embodiment of the invention. The side window roller blind 204 is also one at the level of a schematically indicated lower edge 27 only schematically indicated side door 2 retractable. A linear guide means 205 for the side window roller blind 204 comprises the pull-out profile 250, as well as a rod 251 or antenna arranged laterally on the roller blind 40. The rod 251 is guided at least in the region of the side door 2 in a guide rail 8. The rod 251 and thus the roller blind 40 are locked by a blocking device 207 in the position shown, which is in the illustrated embodiment, the protective position of the blind sheet 40. The blocking device 207 comprises a pivotable switch 71, which is pivotally mounted on the rod 251, and a pivotable switching element 72, through which the switch 71 is actuated. The width of the switch 71 is approximately equal to or less than the width of the rod 251, wherein the switch 71 for moving the rod 251 can be arranged in alignment with the rod 251. The switch 71 is further pivotable in the illustrated position, wherein a longitudinal axis of the switch 71 with the longitudinal axis of the rod 251 forms an angle. In the in Fig. 5 As shown, the switch 71 is forced in a direction shown by the arrow X by a return force FR acting on the roller blind downwardly in the illustration. In the illustrated embodiment, a counter spring 74 is further provided, which loads the switching element 72 and thereby forces the switch 71 in the direction shown by the arrow X direction. In such a forced oblique position of the switch 71, the switch 71 is held between the switching element 72 and a door-side counter-latching element 73, so that pivoting against the direction shown by the arrow X to align the switch 71 with the rod 251 is prevented.

The illustrated blocking device 207 further comprises a drive 75 with a piston 76, by means of which the switching element 72 can be actuated. The drive 75 is designed for example with a servomotor, so that an operation by a driver is remotely possible. alternative and / or additionally, a setting knob 77 may be provided, through which the switching element 72 is actuated.

Fig. 6 and Fig. 7 schematically show an operation of the blocking device 207 according to Fig. 5 , As schematically in Fig. 6 shown, a force P is applied by the servo motor 75 and / or the knob 77, wherein the switching element 72 is actuated against the force FS of the opposing spring 74, is pivoted in the illustrated embodiment. The switching element 72 acts on its button 720 in such a way with the switch 71 that the switch 71 is pivoted, so that the switch 71 is aligned with the rod 251. The switching element 72 is pivoted to a contact with the switch 71 at a turning point 721, which is formed in the illustrated embodiment by a tip of the switching element 72 on the button 720. Upon withdrawal of the force P after reaching the turning point 721, the switch 71 is turned on by the switching element 72 as in FIG Fig. 7 can be seen held in the aligned arrangement, so that the rod 251 slidably and thus the blind sheet is wound up.

In a further embodiment, the blocking device 207 blocks unwinding of the roller blind 40.

By a drive 75, for example a servo motor and / or an electric magnet, a remote-controlled release and / or locking of the blocking device 207 is possible. For releasing and / or locking in each case only a small travel is necessary and / or apply a small force. Depending on the design of the drive means for the roller blind 40 after releasing the blocking device 207 is an automatic unwinding, for example due to a force of a spring-loaded arrangement, or an automatic winding, for example, due to a force of a return spring shading blinds.

8 to 12 12 schematically show an operation of a blocking device 307. The blocking device 307 is similar to the blocking device 207 according to FIG Fig. 5 trained and the same or similar components, the same or similar reference numerals are used.

The blocking device 307 comprises a pivotable switching head 171, which is pivotable on the rod 251 of the side window roller blind 204 according to FIG Fig. 5 is appropriate. The switching head 171 has four concave corners 771 and four convex corners 772, which are arranged alternately, wherein by connecting the convex corners 772 of the switching head 171, a rectangle with a longitudinal side a and a broadside b can be formed. The blocking device 307 further comprises a vehicle-mounted, pivotable contact piece 172, through which the switching head 171 is actuated. The switching piece 172 is loaded at one end by a spring 174 with the force FS. At the opposite end a piston 76 of a holding magnet 75 is mounted, wherein the switching piece 172 is pivotable about an axis arranged between the ends. In the illustrated embodiment, the holding magnet 75 in the in Fig. 8 shown position unloaded.

In the in Fig. 8 illustrated arrangement of the switching head 171, the rod 251 and thus the side window roller blind 204 in the direction indicated by the arrow Y from the guide rail 8 can be extended. An extension is possible until the switching head 171 reaches a provided on the guide rail 8 counter-locking element 173, this position is also referred to as the switching point.

As in Fig. 9 shown, the counter-latching element 173 is arranged so that a tip 730 abuts upon reaching the switching point on an edge of an upper concave corner 771, so that the switching head 171 is pivoted to a locking position. In the illustrated embodiment there is a pivoting counterclockwise. Depending on the design of the spring 174 171 and the switching element 172 can be pivoted after the elimination of the contact force between the contact piece 172 and switching head 171 due to the force FS of the spring 174. In the case shown pivoting counterclockwise would be conceivable (not shown). In other embodiments, the piston 76 in the position shown on the stop, so that no further pivoting is possible.

As in Fig. 10 shown, after reaching the switching point, the side window blind 204 can be moved, for example, by eliminating the pull-out force due to gravity against the extension direction down. In this case, the switching head 171 locks with two diagonally opposite convex corners 772, 772a between a wall of the guide rail 8 and the contact piece 172. In the illustrated embodiment, the contact piece 172 is held by the spring 174 and the switching head 172 in the position shown.

Fig. 11 shows the blocking device 307 when releasing the locking. For this purpose, a force is applied by the holding magnet 75, so that the switching piece 172 pivots against the force FS of the spring 174. In this case, the switching head 171 is pivoted and / or moved so that the latching is released. In other embodiments, the spring 174 is designed so that it loads the switching piece 172 in a clockwise direction, wherein by the holding magnet 75, a counter force is applied, which is reduced or removed to release the latching.

Fig. 12 shows the blocking device 307 when retracting the side window roller blind 204 after releasing the locking, wherein the switching piece 172 is pivoted back again after elimination of the force applied by the holding magnet 75 force.

This locking and unlocking according to the FIGS. 8 to 12 is also referred to as push-push locking in the context of the invention. In this case, the force is applied to lock on a broad side a of the switching head 171 and the force for unlocking on the longitudinal side b of the switching head 172, wherein a short-term force application causes a locking or unlocking.

In a further embodiment, a blocking device according to the FIGS. 8 to 12 be used for locking in a stowed position, wherein the elements are to be arranged mirrored about a horizontal axis. The movement from the shift position according to Fig. 9 in the locked position according to Fig. 10 takes place in the illustrated embodiment by the weight. Likewise, for locking according to Fig. 10 used the weight. When locking with a corresponding blocking device, a force corresponding to the action of the force of gravity is to be applied by a spring, for example a spring-loaded arrangement for extending the roller blind.

Claims (12)

1. Roller shade for a motor vehicle window having a flexible planar structure (40) that can be wound onto and unwound from a winding shaft (43) and that can be moved with the aid of at least one linear guide means (5, 105, 205) from a stowed position into an at least partially unwound protection position, and having at least one releasable locking device (7, 207, 307) by which the linear guide means (5, 105, 205) can be locked in at least one position, characterized in that the locking device (7, 207, 307) comprises a push-push lock.
2. Roller shade according to Claim 1, characterized in that the linear guide means (5, 105, 205) can be locked in the stowed position, where the locking device (7) can be released by applying a force to the linear guide means and/or by moving the linear guide means against an unwinding direction (A).
3. Roller shade according to Claim 2, characterized in that a mechanical drive means (6) effective in the unwinding direction (A) is provided, by which the flexible planar structure (40) can be unwound from the winding shaft (43) after a release of the locking device (7).
4. Roller shade according to Claim 3, characterized in that the mechanical drive means (6) is designed as a spring-loaded arrangement.
5. Roller shade according to one of Claims 1 to 4, characterized in that the locking device (7) comprises at least one engaging element (70) interacting with the linear guide means (5, 105, 205) to achieve locking.
6. Roller shade according to Claim 5, characterized in that the linear guide means (5, 105, 205) comprises a guide groove (54) inside which the engaging element (70) is guided, the guide groove (54) having at least one engagement position (57).
7. Roller shade according to Claim 6, characterized in that the guide groove (54) has at least in some sections the form of a cardioid.
8. Roller shade according to one of Claims 1 to 7, characterized in that an actuation direction of the push-push lock runs transversely to the unwinding direction (A), in particular at an angle of about 90°.
9. Roller shade according to Claim 8, characterized in that the linear guide means (5, 105, 205) has a pivotable switch (71, 171) and the locking device (207, 307) has at least one movable switching element (72, 172) for actuating the switch, where the switch (71, 171) and the switching element (72, 172) interact to lock the linear guide means (5, 105, 205).
10. Roller shade according to one of Claims 1 to 8, characterized in that the locking device (7, 207, 307) comprises a drive, in particular a servomotor and/or a magnet.
11. Roller shade according to one of Claims 1 to 10, characterized in that the linear guide means (5, 105, 205) comprises at least one rod (51, 251) which is operatively connected to a pull-out strip (50, 250) attached to the flexible planar structure (40) for transmission of the movement.
12. Roller shade according to Claim 11, characterized in that the linear guide means (5, 105, 205) comprises at least one telescopic rod (151) which is operatively connected to the pull-out section (50, 250) attached to the flexible planar structure (40) for transmission of the movement.

Images